Jason,
It would propably be advisable to not send out requests like this to public
mailing lists.
A possible quick and dirty solution to your problem:
https://grc.com/x/ne.dll?bh0bkyd2
It isn't complete by no means, but it will propably give you an idea at least.
The restriction is that you need to request the page from the location you
want to be scanned.
Roel Jonkman
Security Engineer
http://www.SiliconDefense.com